RE:RUN
That figure is very misleading. It includes thousands of projects that are totally speculative holdings. Geologist stake ground and hold them as on speculation that one day something may come of them. Minimal work is ever done on them and you will never hear anything about them.
It is much like buying land on the out skirts of a city on the hopes that one day the city will expand out to where you purchase land for a dollars on the acre.